[INFO] fetching crate learn_rust_demo 0.1.0...
[INFO] testing learn_rust_demo-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate learn_rust_demo 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate learn_rust_demo 0.1.0
[INFO] finished tweaking crates.io crate learn_rust_demo 0.1.0
[INFO] tweaked toml for crates.io crate learn_rust_demo 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate learn_rust_demo 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate learn_rust_demo 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33a6cfd63d40c7806f3c98091e0be7aad90e4799d207b8a120ab3a0b142622b2
[INFO] running `Command { std: "docker" "start" "-a" "33a6cfd63d40c7806f3c98091e0be7aad90e4799d207b8a120ab3a0b142622b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33a6cfd63d40c7806f3c98091e0be7aad90e4799d207b8a120ab3a0b142622b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33a6cfd63d40c7806f3c98091e0be7aad90e4799d207b8a120ab3a0b142622b2", kill_on_drop: false }`
[INFO] [stdout] 33a6cfd63d40c7806f3c98091e0be7aad90e4799d207b8a120ab3a0b142622b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cf9f945dfdb7fb684330dcc083ef0c959918598196a31cdc1aad629059d37a9
[INFO] running `Command { std: "docker" "start" "-a" "5cf9f945dfdb7fb684330dcc083ef0c959918598196a31cdc1aad629059d37a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_rust_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "5cf9f945dfdb7fb684330dcc083ef0c959918598196a31cdc1aad629059d37a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cf9f945dfdb7fb684330dcc083ef0c959918598196a31cdc1aad629059d37a9", kill_on_drop: false }`
[INFO] [stdout] 5cf9f945dfdb7fb684330dcc083ef0c959918598196a31cdc1aad629059d37a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 349a88c1970e0d4d1d70c1edb543a8c8a606047a9c40355e0fdd56491025b679
[INFO] running `Command { std: "docker" "start" "-a" "349a88c1970e0d4d1d70c1edb543a8c8a606047a9c40355e0fdd56491025b679", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_rust_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "349a88c1970e0d4d1d70c1edb543a8c8a606047a9c40355e0fdd56491025b679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "349a88c1970e0d4d1d70c1edb543a8c8a606047a9c40355e0fdd56491025b679", kill_on_drop: false }`
[INFO] [stdout] 349a88c1970e0d4d1d70c1edb543a8c8a606047a9c40355e0fdd56491025b679
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 602b20f7d4a10de7c2b914d5fe22fd385c4be549634344f4ba9f09eb0715ca1c
[INFO] running `Command { std: "docker" "start" "-a" "602b20f7d4a10de7c2b914d5fe22fd385c4be549634344f4ba9f09eb0715ca1c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/learn_rust_demo-a99dd354fb7d2593)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learn_rust_demo-e9ba5a01b5c2ea5c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests learn_rust_demo
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "602b20f7d4a10de7c2b914d5fe22fd385c4be549634344f4ba9f09eb0715ca1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "602b20f7d4a10de7c2b914d5fe22fd385c4be549634344f4ba9f09eb0715ca1c", kill_on_drop: false }`
[INFO] [stdout] 602b20f7d4a10de7c2b914d5fe22fd385c4be549634344f4ba9f09eb0715ca1c